Latch for vehicle doors



. R. V. KAIMER AND C. E. BITTER.

LATCH FOR VEHICLE DOORS.

APPLICATION FILED MAY 11. 1921.

1 ,415,839, Patented May 9, 1922.

2 SHEETS-"SHEET 1.

. E. BITTER.

R. V. KAIMER AND C LATCH FOR VEHICLE DOORS.

APr'ucmou FILED MAY 17. 1921.

Patented May 9, 1922 2 SHEET SHEET 2 [Illa/la? UNITED STATES PATENT ounce.

RICHARD V. KAIMER, OF NEW HAVEN, CONNECTICUT, AND CHARLES E. BITTER, OF CEICAGO, ILLDTOIS, ASBIGNOBS TO THE ENGLISKwSt MERSEIGBI 00., OF NEW HAVEN,

CONNECTICUT, A. CORPORATION.

m'rcn non vnnrcnn Doors.

Patented: May 9, 1922.

Application filed in? 17, 1921. semi-m. 470,306.

Specification of Letters' Pat-nt.

To all whom it may concern:

Be it known that we, RICHARD V. KAIMER,

a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, and CHARLES E. BITTER, a citizen of the United States, residing .at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Latches for Vehicle Doors; and we do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in-

Fig. 1 an inside face view of a latch for vehicle doors constructed in accordance with our invention.

Fig. 2 a front view, partly in section, of the same.

Fig. 3 a view similar to Figure 1, partly in section, showing the bolt in its depressed position and in engagement with the rollack. Fig. 4 a sectional view on the line 44of Figure 1.

Fig. 5 a sectional view on the line 5-5 of Figure 1.

This invention relates to im rovement in latches for vehicle doors and particularly to latches which are operated by a verticallyarranged rotary-spindle. The object of the invention is to provide means to positively hold the latch in the thrown that the door may be locked from the inside of the vehicle. In latches operated by a vertically-arranged rotary-spindle it sometimes happens that the latch does not project outward to the limit of its movement and, consequently the handle on the end of the spindle Wlll not alwaysstand in line with the edge of the door, and another 0b- 'ect of this invention is to provide means for holding the handle in proper position, irres ctive of the projection of the latch, and t e invention consists in the construction and arrangement of parts as hereinafter described and recited in the claims.

In carrying out our invention, we em'ploy the usual case-plate 10, on-which is mounted the usual latch 11, with its noseprojecting throu h the flange 13 of the casement. This late]? is adapted tobe moved by a positlon, so-

cam 14 at the lower end of the verticallyarranged rotatable-spindle 15 which pro jects up throu h the edge of the door. The latch is also a apted to be retired by means of the usual roll-back 16, adapted to be turned by a handle from the outside of the door. brenerally speaking, the parts thus described are of usual construction.

To provide means for positively locking the latch-bolt" in its thrown position, we form the roll+back 16 with a stop-lug-17 to be engaged by a vertically movable bolt 18 extending downward through a suitable housing 19, fromv an arm. 20 which is mounted on the spindle 15, the arm being formed with a cam 21 engaged by a pin 22 mounted in the spindle, so that, when the spindle isturned', the pin 22 will ride over the cam 21 and raise the arm 20, so as to lift the bolt 18 out of engagement with the stop-lug 17. If desired, a spring-bolt 23 may be mounted in the housing 19 to engage with notches 24 or 25 in the edge of the bolt. Around the spindle l5 and resting upon the arm 20 is a sleeve 26, and this sleeve is coupled by a transverse-pin 27 with a push-rod 28 having a push-button' 29 which extends upward through a lever-handle 30, which is coupled with the spindle 15 and by which the spindle may be turned. To hold the handle in proper alignment, we mount a spring 31 on the case-plate 10, the end of the spring bearing on the flattened face 32 on the spindle 15. When the handle 30 is turned to retire the nose 12 of the latch-bolt 11, the arm 20 is raised so as to lift the ends of the bolt 18 out of engagement with the roll-back 16, which is then free to be 0 erated by the handle on the outside of t e door. When, however, a person desires to lock the'car, a downward pressure on, the button 29 forces the sleeve 26 downward against the arm 20 and moves the bolt 18 into line with the stop 17 on the roll-back, so that the roll-back cannot be operated from'the handle on the outside of the door.

It will be understood that these latches are for use on closed cars, and when leavin the car all the doors except bne will be locked from the inside, the door throu h which the occupant leaves the car-being ocked in the usual manner from the outs de. the doors of the car will be securely locked.

When, however, thehandle 30 of any latch is turned, the pin 22, operating against the cam 21, will lift the arm :20, and hence retire the bolt 18 out of engagement with the roll-back 16, and the latches are, therefore, free to be operated from the outside. The spring 31, hearing against the spindle 15, will hold the handle 31 in its proper posi tion. irrespective of the position of the latchbolt.

We thus provide a simple means whereby the latch-bolt may be positively' locked against operation from the outside. We, do not claim broadly means for accomplishing this result, as the broad claim is made the subject of another application filed in even date herewith.

We claim:

1. In a .latch for vehicle doors, the combination with a latch-bolt of a'vertically-arranged rotatable spindle for moving the same, a roll-back may be moved, said roll-back formed with a stop, avertically-movable bolt adapted to be projected into the path of said stop, and

means operated by the turning of said spindle for lifting said bolt..

2. A latch for vehicle doors comprising a latch-bolt, a vertically-arranged rotatable spindle for moving the same, a roll-back also adapted a to move the latch-bolt, said rollback formed with a stop, an arm mounted on said spindle and formed with a bolt adapted to be projected into the path of said stop,

said arm formed with a cam surface, a pin mounted in the spindle in engagement with by which the latch-bolt said cam, a sleeve around said spindle and resting on said arm, and a push-pin mounted in the upper end of said spindle and connected with said sleeve, whereby said sleeve may be depressed.

3. A latch for vehicle doors comprising a case-plate, a latch-bolt mounted thereon, a vertically-arranged rotable spindle adapted to move said latch-bolt, a roll-back also adapted to move said v latch-bolt, an arm mounted on said spindle and provided with abolt adaptedto engage with said rollback, means for lifting said arm by the rotation of said spindle, a sleeve around said spindle and resting upon said,arm, a handle applied to the upper end of the said spindle, a pushrod mounted in the upper end of the spindle and provided with a push-button and projecting through the upper face of said handleand coupled with said sleeve.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

RICHARD V. KAIlVfER.

Witnesses:

MARTHA M. THEISS, RUTH E. BRADLEY. In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

CHARLES E. BITTER.

Witnesses:

MAMIE B. Rrrrnn, MILDRED B. Rrrrnn. 

